> Hi all!
>
> I'm trying to play some music from asterisk, and when I call to the PBX
> from a GSM mobile phone, the more I speak while hearing the music, the
> worst is the quality of the music I hear... My audio is at 8Khz,
> 16bits/sample.
>
> I've tried different codecs for asterisk, but results are the same...
>
> If I call to the PBX from a conventional phone, I can speak while hearing
> the music, with no quality loss...
>
> Any idea? Does it have anything with the mobile-GSM standard used for
> coding?
>
> What to do?
>
> thanks,
>
> -e
>


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